I just did mine this year. Boat new untreated 2x6's and a $30 electric stapler with stainless staples. I used a router to round over all the edges and stapled the heck out of the new carpet. No glue needed. Took boat and new boards to launch and replaced them all in less than 30mins. I bought new stainless lag bolts but coulda prob just used the old ones. Now I have spare bunk boards to do it all again in a few years.